| Budget Amount *help |
¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Fiscal Year 2017: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2016: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2015: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
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| Outline of Final Research Achievements |
In this research, the hot-wire laser welding method with low heat input for a thick-steel plate by combination with the high-tolerance and high-precision heat input control by beam shaping using diode laser which is easy to control laser spot shape and high speed weaving, and hot-wire system having low heat input / high efficiency properties was investigated.
The welding process which could be applied for a single-pass welding with a low heat input on a thick steel plate with a 28 mm thickness with a gas-cutted groove was developed. And It was clarified that the joint which produced using the developed welding process had sufficient strength and toughness, although there are some problems at the fusion boundary.
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